/* ==========================================================================
   Calculadora de Desarrollo y Transmisión de Moto - Estilos Canónicos
   ========================================================================== */

:root {
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-title: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Tema oscuro por defecto */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #182234;
  --bg-card-hover: #223048;
  --bg-input: #0b1120;
  --border-color: #334155;
  --border-focus: #38bdf8;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-color: #38bdf8;
  --accent-hover: #0284c7;

  /* Paleta de comparación A/B */
  --color-stock: #38bdf8;
  --color-stock-bg: rgba(56, 189, 248, 0.1);
  --color-mod: #f97316;
  --color-mod-bg: rgba(249, 115, 22, 0.1);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-input: #ffffff;
  --border-color: #cbd5e1;
  --border-focus: #0284c7;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent-color: #0284c7;
  --accent-hover: #0369a1;

  --color-stock: #0284c7;
  --color-stock-bg: #e0f2fe;
  --color-mod: #ea580c;
  --color-mod-bg: #ffedd5;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.25;
}

.tool-layout {
  max-width: 1200px;
  width: 100%;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  flex: 1 0 auto;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Tarjeta Principal */
.card-main {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

/* Selector de presets */
.preset-selector-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background-color: var(--bg-secondary);
  padding: 1rem 1.25rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.preset-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 44px;
  padding: 0 40px 0 0.875rem;
  background-color: var(--bg-input);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}

.form-select option, .form-select optgroup {
  background-color: var(--bg-card);
  color: var(--text-main);
}

/* Rejilla comparativa A/B */
.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.compare-col {
  border-radius: 12px;
  padding: 1.25rem;
  border: 2px solid var(--border-color);
  background-color: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.col-stock {
  border-color: var(--color-stock);
}

.col-mod {
  border-color: var(--color-mod);
}

.col-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.badge-stock {
  align-self: flex-start;
  font-size: 0.725rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  background-color: var(--color-stock-bg);
  color: var(--color-stock);
}

.badge-mod {
  align-self: flex-start;
  font-size: 0.725rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  background-color: var(--color-mod-bg);
  color: var(--color-mod);
}

.col-title {
  font-size: 1.2rem;
  color: var(--text-main);
}

.gearing-inputs {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

/* Stepper de dientes */
.input-stepper {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--bg-input);
  overflow: hidden;
}

.btn-step {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
  border: none;
  color: var(--text-main);
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s;
  flex-shrink: 0;
}

.btn-step:hover {
  background-color: var(--border-color);
}

.text-center {
  text-align: center;
}

.input-stepper .form-control {
  border: none;
  border-radius: 0;
  height: 44px;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 800;
  background: transparent;
  color: var(--text-main);
  width: 100%;
}

.form-control:focus {
  outline: none;
}

/* Resumen del ratio */
.ratio-summary-box {
  background-color: var(--bg-card);
  border-radius: 8px;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.2rem;
}

.ratio-label {
  font-size: 0.775rem;
  color: var(--text-muted);
}

.ratio-value {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
}

.ratio-sub {
  font-size: 0.725rem;
  color: var(--text-muted);
}

.ratio-diff {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-mod);
}

/* Ajustes técnicos avanzados */
.tech-details {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
}

.tech-summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.15rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--accent-color);
  user-select: none;
}

.tech-summary:hover {
  background-color: var(--bg-card-hover);
}

.tech-content {
  padding: 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tech-subgrid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.tech-subgrid .form-control, .gear-ratios-grid .form-control {
  height: 40px;
  padding: 0 0.65rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.tech-heading {
  font-size: 0.95rem;
  color: var(--text-main);
}

.gear-ratios-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.5rem;
}

/* Rejilla de telemetría */
.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.telemetry-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.telemetry-title {
  font-size: 0.775rem;
  font-weight: 700;
  color: var(--text-muted);
}

.telemetry-vals {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 800;
}

.telemetry-stock {
  color: var(--color-stock);
}

.telemetry-arrow {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.telemetry-mod {
  color: var(--color-mod);
}

.telemetry-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Control deslizante de RPM */
.rpm-slider-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.rpm-slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.rpm-slider-display {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent-color);
}

.custom-range {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--bg-input);
  outline: none;
  cursor: pointer;
  accent-color: var(--accent-color);
}

/* Tabla de marchas */
.gears-table-wrapper {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow-x: auto;
}

.gears-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
}

.gears-table th {
  background-color: var(--bg-card);
  padding: 0.75rem 1rem;
  color: var(--text-muted);
  font-weight: 700;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.gears-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
}

.gears-table tr:last-child td {
  border-bottom: none;
}

.val-stock {
  color: var(--color-stock);
  font-weight: 700;
}

.val-mod {
  color: var(--color-mod);
  font-weight: 700;
}

/* Gráfico Canvas */
.chart-wrapper {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chart-title {
  font-size: 1rem;
  color: var(--text-main);
}

.chart-legend {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.legend-line {
  display: inline-block;
  width: 18px;
  height: 3px;
  border-radius: 2px;
}

.legend-stock {
  background-color: var(--color-stock);
}

.legend-mod {
  background-color: var(--color-mod);
}

.canvas-container {
  width: 100%;
  height: auto;
  position: relative;
  background-color: var(--bg-input);
  border-radius: 8px;
  overflow: hidden;
  padding: 0.5rem;
}

#gearing-chart {
  width: 100%;
  height: auto;
  display: block;
}

/* Modal Canónico */
.tool-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  padding: 1rem;
}

.tool-modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.tool-modal-dialog {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 100%;
  max-width: 460px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.tool-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.tool-modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.tool-modal-body {
  padding: 1.25rem;
  font-size: 0.925rem;
  color: var(--text-main);
}

.tool-modal-footer {
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

.btn-primary {
  background-color: var(--accent-color);
  color: #0f172a;
  padding: 0.65rem 1.5rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
}

/* Responsivo */
@media (max-width: 992px) {
  .tool-with-sidebar {
    flex-direction: column;
  }
  .tool-ad-sidebar {
    display: none;
  }
  .telemetry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .compare-grid {
    grid-template-columns: 1fr;
  }
  .telemetry-grid {
    grid-template-columns: 1fr;
  }
  .tech-subgrid {
    grid-template-columns: repeat(2, 1fr);
  }
  .gear-ratios-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}